Texas Instruments
INA302A3IPW

The INA302 and INA303(INA30x) devices feature a high common-mode, bidirectional,current-sensing amplifier and two high-speed comparators to detect out-of-range current conditions.The INA302 comparators are configured to detect and respond toovercurrent conditions. The INA303 comparators are configured torespond to both overcurrent and undercurrent conditions in a windowed configuration. These devicesfeature an adjustable limit threshold range for each comparator set using an external limit-settingresistor. These current-shunt monitors can measure differential voltage signals on common-modevoltages that can vary from –0.1 V up to +36 V, independent of the supply.

The open-drain alert outputs can be configured to operate in either a transparent mode(output status follows the input state), or in a latched mode (alert output is cleared when thelatch is reset). The alert response time for comparator 1 is under 1 µs, and the alert response forcomparator 2 is set through an external capacitor ranging from 2 µs to 10 s.

These devices operate from a single 2.7-V to 5.5-V supply, drawing a maximum supplycurrent of 950 µA. The devices are specified over the extended operating temperature range of –40°Cto +125°C, and are available in a 14-pin TSSOP package.